[Twisted-web] exceptions.AttributeError: NevowSite instance has no attribute 'url'

[Justin Johnson]

Of course, you are correct.  Sorry 'bout that.  :-(

On Tue, 23 Dec 2003 10:09:08 -0500, "Donovan Preston" <dp@divmod.org>
said:
> 
> On Dec 23, 2003, at 9:20 AM, Justin Johnson wrote:
> 
> > After updating to the latest CVS I get errors in the attached log file
> > upon the initial load of my app, which uses guard and SessionWrapper 
> > for
> > authentication.
> >
> >     portal = login.RatControlPortal(realm)
> >     # Allow anonymous access.
> >     portal.registerChecker(AllowAnonymousAccess(), IAnonymous)
> >     # Allow users registered in the password file.
> >     portal.registerChecker(FilePasswordDB(sibpath(__file__,
> >     "passwords.txt")))
> >
> >     site = appserver.NevowSite(
> >         resource=SessionWrapper(
> >             UsernamePasswordWrapper(portal,
> >             callback=utility.loginCallback)
> >         ),
> >     )
> >
> >
> > I can try to get a tac together if needed, but the most recent changes 
> > in
> > CVS looked like they might have caused the problem.  Just wanted to 
> > give
> > you some idea of what my code looks like.
> 
> Are you using a tap? If so, you'll need to rerun mktap, as the pickled 
> NevowSite in your tap won't have had the new NevowSite.__init__ called 
> on it, which creates the URLGenerator which it stores as .url.
> 
> This is exactly the upgrading problem glyph is writing about in his 
> blog -- how to balance the need for seamless state upgrades for old 
> persistent objects with the need to keep the code simple, small and 
> bugfree.
> 
> dp
> 
> 
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